Technology card reed number is what?

Update:14-12-2017
Summary:

A kind of machine on looms [reed]. The old weaving mach […]

A kind of machine on looms [reed]. The old weaving machine is made of bamboo, the new weaving machine is made of steel, the warp between the dents, its role is to push the weft to the weaving. Such as: reed cloth (yarn woven through the reed pieces of cloth)
Loom on the weft to the fabric and control the warp yarn density and width of the machine. In the original weaving machine with a beating weft to the weaving. China Spring and Autumn and Warring States Period oblique loom and hit the weft knives combined knife 杼. Ancient hand-woven carpet with rake-like weft feeder. Qin and Han dynasties have used bamboo reed, in addition to beating effect, but also to control the warp density and fabric width, is a major improvement. 1733 British J. Kay made reed. Metal reed is divided into glue reed and welding reed. Glued reed is to reed reed wire tied around the reed edge of the bar, and then fixed with glue. Commonly used in cotton, linen, wool production. Welding reed is reed sheet with steel wire reed edge of the reed, and then sealed with solder. The reed dents are evenly arranged and firm in texture, suitable for weaving silk, mesh, tape and thick fabrics with high warp density.
The height of the reed is determined by the size of the opening. The thickness of the reed varies with the reed number. The larger the reed number is, the thinner the reed is. Reed number commonly used unit length reeds denote that the general metric system with a length of 1 cm or 10 cm reed number, English with 1 inch or 2 inches length reed number. The reed number is determined by warp density, weft shrinkage, and the number of warp threads per reed gap. The number of penetration per indentation affect the appearance of the fabric and warp ends, usually through the number of 1 to 4. General reed commonly used fabric distribution reed evenly. Weaving special fabric available deer reed uneven distribution of special reed. In order to reduce the breakage of the warp yarns, a double row of dents can be used for weaving a plain weave fabric having a high warp density. Some air-jet looms in order to facilitate jet weft reed use. Water-jet looms with stainless reeds (see jet looms). Some multi-shuttle weaving loom with rotating spiral weft to promote the weft carrier, and the weft into the weaving mouth to complete weft insertion and beating action....

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